title: An investigation of the immune response of homozygotes for the Rh haplotype --D-- and related haplotypes. Using cells of rare Rh phenotypes.
abstract: Immune sera from people homozygous for the "deleted" gene complexes --D--, cD--, CwD--, . D . and (C)Div-- as well as heterozygous --D--/--- --- --- were studied by their reactions, and in some cases by absorption-elution tests, with cells of the following rare Rh types: two unrelated examples of homozygous . D .; three unrelated examples of Rhmod; homozygous R33; cDe with a very weak e; apparent CwD(e)/--D--. The results showed that these immune sera are clearly heterogeneous: this heterogeneity was not entirely due to the strength of the antibody (as determined by titration against CDe/cDE cells) or to the phenotype of the antibody maker. Absorption and elution tests using two of the immune sera and . D ./. D . cells demonstrated a "new" antibody, anti-Dav, for a high frequency Rh antigen in addition to anti-Rh17.
mesh_terms: D000917:Antibody Formation; D006720:Homozygote; D006801:Humans; D007106:Immune Sera / Q000276:immunology; D010641:Phenotype; D012204:Rh-Hr Blood-Group System / Q000235:genetics / Q000276:immunology*
chemical_list: D007106:Immune Sera; D012204:Rh-Hr Blood-Group System